/*
 * Copyright [2013-2021], Alibaba Group Holding Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.polardbx.executor.mpp.operator.factory;

import com.alibaba.polardbx.executor.mpp.operator.DriverContext;
import com.alibaba.polardbx.executor.mpp.operator.DriverExec;
import com.alibaba.polardbx.executor.mpp.planner.PipelineFragment;
import com.alibaba.polardbx.executor.operator.ConsumerExecutor;
import com.alibaba.polardbx.executor.operator.Executor;
import com.alibaba.polardbx.optimizer.context.ExecutionContext;

public class SubPipelineFactory extends PipelineFactory {

    private int start;

    public SubPipelineFactory(PipelineFactory pipelineFactory,
                              PipelineFragment fragment,
                              int start) {
        super(pipelineFactory.getProduceFactory(), pipelineFactory.getConsumeFactory(), fragment);
        this.start = start;
    }

    @Override
    public DriverExec createDriverExec(ExecutionContext context, DriverContext driverContext, int index) {
        Executor producer = produceFactory.createExecutor(context, index + start);
        ConsumerExecutor consumerExecutor = consumeFactory.createExecutor(context, index + start);
        return new DriverExec(
            fragment.getPipelineId(), driverContext, producer, consumerExecutor, fragment.getParallelism());
    }
}
